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提交 071408b6 编写于 作者: H Hans Verkuil 提交者： Mauro Carvalho Chehab
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[media] DocBook validation fixes 

More validation fixes as reported by xmllint.

There are still three xmllint errors after this remaining regarding SVG file support.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
上级 34affc6a
隐藏空白更改
内联 并排
Showing with 278 addition and 277 deletion
Documentation/DocBook/media/Makefile
浏览文件 @ 071408b6
......@@ -300,7 +300,7 @@ $(MEDIA_OBJ_DIR)/media-entities.tmpl: $(MEDIA_OBJ_DIR)/v4l2.xml
@( \
for ident in $(IOCTLS) ; do \
entity=`echo $$ident | tr _ -` ; \
id=`grep "<refname>$$ident" $(MEDIA_OBJ_DIR)/vidioc-*.xml | sed -r s,"^.*/(.*).xml.*","\1",` ; \
id=`grep "<refname>$$ident" $(MEDIA_OBJ_DIR)/vidioc-*.xml $(MEDIA_OBJ_DIR)/media-ioc-*.xml | sed -r s,"^.*/(.*).xml.*","\1",` ; \
echo "<!ENTITY $$entity \"<link" \
"linkend='$$id'><constant>$$ident</constant></link>\">" \
>>$@ ; \
......
Documentation/DocBook/media/dvb/dvbproperty.xml
浏览文件 @ 071408b6
......@@ -569,33 +569,33 @@ typedef enum fe_delivery_system {
<title><constant>DTV_ATSCMH_RS_FRAME_MODE</constant></title>
<para>RS frame mode.</para>
<para>Possible values are:</para>
<section id="atscmh-rs-frame-mode">
<para id="atscmh-rs-frame-mode">
<programlisting>
typedef enum atscmh_rs_frame_mode {
ATSCMH_RSFRAME_PRI_ONLY = 0,
ATSCMH_RSFRAME_PRI_SEC = 1,
} atscmh_rs_frame_mode_t;
</programlisting>
</section>
</para>
</section>
<section id="DTV-ATSCMH-RS-FRAME-ENSEMBLE">
<title><constant>DTV_ATSCMH_RS_FRAME_ENSEMBLE</constant></title>
<para>RS frame ensemble.</para>
<para>Possible values are:</para>
<section id="atscmh-rs-frame-ensemble">
<para id="atscmh-rs-frame-ensemble">
<programlisting>
typedef enum atscmh_rs_frame_ensemble {
ATSCMH_RSFRAME_ENS_PRI = 0,
ATSCMH_RSFRAME_ENS_SEC = 1,
} atscmh_rs_frame_ensemble_t;
</programlisting>
</section>
</para>
</section>
<section id="DTV-ATSCMH-RS-CODE-MODE-PRI">
<title><constant>DTV_ATSCMH_RS_CODE_MODE_PRI</constant></title>
<para>RS code mode (primary).</para>
<para>Possible values are:</para>
<section id="atscmh-rs-code-mode">
<para id="atscmh-rs-code-mode">
<programlisting>
typedef enum atscmh_rs_code_mode {
ATSCMH_RSCODE_211_187 = 0,
......@@ -603,7 +603,7 @@ typedef enum atscmh_rs_code_mode {
ATSCMH_RSCODE_235_187 = 2,
} atscmh_rs_code_mode_t;
</programlisting>
</section>
</para>
</section>
<section id="DTV-ATSCMH-RS-CODE-MODE-SEC">
<title><constant>DTV_ATSCMH_RS_CODE_MODE_SEC</constant></title>
......@@ -621,27 +621,27 @@ typedef enum atscmh_rs_code_mode {
<title><constant>DTV_ATSCMH_SCCC_BLOCK_MODE</constant></title>
<para>Series Concatenated Convolutional Code Block Mode.</para>
<para>Possible values are:</para>
<section id="atscmh-sccc-block-mode">
<para id="atscmh-sccc-block-mode">
<programlisting>
typedef enum atscmh_sccc_block_mode {
ATSCMH_SCCC_BLK_SEP = 0,
ATSCMH_SCCC_BLK_COMB = 1,
} atscmh_sccc_block_mode_t;
</programlisting>
</section>
</para>
</section>
<section id="DTV-ATSCMH-SCCC-CODE-MODE-A">
<title><constant>DTV_ATSCMH_SCCC_CODE_MODE_A</constant></title>
<para>Series Concatenated Convolutional Code Rate.</para>
<para>Possible values are:</para>
<section id="atscmh-sccc-code-mode">
<para id="atscmh-sccc-code-mode">
<programlisting>
typedef enum atscmh_sccc_code_mode {
ATSCMH_SCCC_CODE_HLF = 0,
ATSCMH_SCCC_CODE_QTR = 1,
} atscmh_sccc_code_mode_t;
</programlisting>
</section>
</para>
</section>
<section id="DTV-ATSCMH-SCCC-CODE-MODE-B">
<title><constant>DTV_ATSCMH_SCCC_CODE_MODE_B</constant></title>
......@@ -817,7 +817,7 @@ typedef enum fe_hierarchy {
</section>
<section id="DTV-INTERLEAVING">
<title><constant>DTV_INTERLEAVING</constant></title>
<para>Interleaving mode</para>
<para id="fe-interleaving">Interleaving mode</para>
<programlisting>
enum fe_interleaving {
INTERLEAVING_NONE,
......
Documentation/DocBook/media/dvb/frontend.xml
浏览文件 @ 071408b6
......@@ -264,7 +264,7 @@ and to add newer delivery systems.</para>
<constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant></link> instead, in
order to be able to support the newer System Delivery like DVB-S2, DVB-T2,
DVB-C2, ISDB, etc.</para>
<para>All kinds of parameters are combined as an union in the FrontendParameters structure:</para>
<para>All kinds of parameters are combined as an union in the FrontendParameters structure:
<programlisting>
struct dvb_frontend_parameters {
uint32_t frequency; /&#x22C6; (absolute) frequency in Hz for QAM/OFDM &#x22C6;/
......@@ -277,12 +277,13 @@ struct dvb_frontend_parameters {
struct dvb_vsb_parameters vsb;
} u;
};
</programlisting>
</programlisting></para>
<para>In the case of QPSK frontends the <constant>frequency</constant> field specifies the intermediate
frequency, i.e. the offset which is effectively added to the local oscillator frequency (LOF) of
the LNB. The intermediate frequency has to be specified in units of kHz. For QAM and
OFDM frontends the <constant>frequency</constant> specifies the absolute frequency and is given in Hz.
</para>
<section id="dvb-qpsk-parameters">
<title>QPSK parameters</title>
<para>For satellite QPSK frontends you have to use the <constant>dvb_qpsk_parameters</constant> structure:</para>
......@@ -347,8 +348,8 @@ itself.
<section id="fe-code-rate-t">
<title>frontend code rate</title>
<para>The possible values for the <constant>fec_inner</constant> field used on
<link refend="dvb-qpsk-parameters"><constant>struct dvb_qpsk_parameters</constant></link> and
<link refend="dvb-qam-parameters"><constant>struct dvb_qam_parameters</constant></link> are:
<link linkend="dvb-qpsk-parameters"><constant>struct dvb_qpsk_parameters</constant></link> and
<link linkend="dvb-qam-parameters"><constant>struct dvb_qam_parameters</constant></link> are:
</para>
<programlisting>
typedef enum fe_code_rate {
......@@ -373,9 +374,9 @@ detection.
<section id="fe-modulation-t">
<title>frontend modulation type for QAM, OFDM and VSB</title>
<para>For cable and terrestrial frontends, e. g. for
<link refend="dvb-qam-parameters"><constant>struct dvb_qpsk_parameters</constant></link>,
<link refend="dvb-ofdm-parameters"><constant>struct dvb_qam_parameters</constant></link> and
<link refend="dvb-vsb-parameters"><constant>struct dvb_qam_parameters</constant></link>,
<link linkend="dvb-qam-parameters"><constant>struct dvb_qpsk_parameters</constant></link>,
<link linkend="dvb-ofdm-parameters"><constant>struct dvb_qam_parameters</constant></link> and
<link linkend="dvb-vsb-parameters"><constant>struct dvb_qam_parameters</constant></link>,
it needs to specify the quadrature modulation mode which can be one of the following:
</para>
<programlisting>
......@@ -396,8 +397,8 @@ it needs to specify the quadrature modulation mode which can be one of the follo
} fe_modulation_t;
</programlisting>
</section>
<para>Finally, there are several more parameters for OFDM:
</para>
<section>
<title>More OFDM parameters</title>
<section id="fe-transmit-mode-t">
<title>Number of carriers per channel</title>
<programlisting>
......@@ -453,6 +454,7 @@ typedef enum fe_hierarchy {
} fe_hierarchy_t;
</programlisting>
</section>
</section>
</section>
......
Documentation/DocBook/media/v4l/controls.xml
浏览文件 @ 071408b6
......@@ -3717,232 +3717,231 @@ interface and may change in the future.</para>
use case involving camera or individually.
</para>
</section>
<table pgwide="1" frame="none" id="flash-control-id">
<title>Flash Control IDs</title>
<tgroup cols="4">
<colspec colname="c1" colwidth="1*" />
<colspec colname="c2" colwidth="6*" />
<colspec colname="c3" colwidth="2*" />
<colspec colname="c4" colwidth="6*" />
<spanspec namest="c1" nameend="c2" spanname="id" />
<spanspec namest="c2" nameend="c4" spanname="descr" />
<thead>
<row>
<entry spanname="id" align="left">ID</entry>
<entry align="left">Type</entry>
</row><row rowsep="1"><entry spanname="descr" align="left">Description</entry>
</row>
</thead>
<tbody valign="top">
<row><entry></entry></row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_CLASS</constant></entry>
<entry>class</entry>
</row>
<row>
<entry spanname="descr">The FLASH class descriptor.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_LED_MODE</constant></entry>
<entry>menu</entry>
</row>
<row id="v4l2-flash-led-mode">
<entry spanname="descr">Defines the mode of the flash LED,
the high-power white LED attached to the flash controller.
Setting this control may not be possible in presence of
some faults. See V4L2_CID_FLASH_FAULT.</entry>
</row>
<row>
<entrytbl spanname="descr" cols="2">
<tbody valign="top">
<row>
<entry><constant>V4L2_FLASH_LED_MODE_NONE</constant></entry>
<entry>Off.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_LED_MODE_FLASH</constant></entry>
<entry>Flash mode.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_LED_MODE_TORCH</constant></entry>
<entry>Torch mode. See V4L2_CID_FLASH_TORCH_INTENSITY.</entry>
</row>
</tbody>
</entrytbl>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_STROBE_SOURCE</constant></entry>
<entry>menu</entry>
</row>
<row id="v4l2-flash-strobe-source"><entry
spanname="descr">Defines the source of the flash LED
strobe.</entry>
</row>
<row>
<entrytbl spanname="descr" cols="2">
<tbody valign="top">
<row>
<entry><constant>V4L2_FLASH_STROBE_SOURCE_SOFTWARE</constant></entry>
<entry>The flash strobe is triggered by using
the V4L2_CID_FLASH_STROBE control.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_STROBE_SOURCE_EXTERNAL</constant></entry>
<entry>The flash strobe is triggered by an
external source. Typically this is a sensor,
which makes it possible to synchronises the
flash strobe start to exposure start.</entry>
</row>
</tbody>
</entrytbl>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_STROBE</constant></entry>
<entry>button</entry>
</row>
<row>
<entry spanname="descr">Strobe flash. Valid when
V4L2_CID_FLASH_LED_MODE is set to
V4L2_FLASH_LED_MODE_FLASH and V4L2_CID_FLASH_STROBE_SOURCE
is set to V4L2_FLASH_STROBE_SOURCE_SOFTWARE. Setting this
control may not be possible in presence of some faults.
See V4L2_CID_FLASH_FAULT.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_STROBE_STOP</constant></entry>
<entry>button</entry>
</row>
<row><entry spanname="descr">Stop flash strobe immediately.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_STROBE_STATUS</constant></entry>
<entry>boolean</entry>
</row>
<row>
<entry spanname="descr">Strobe status: whether the flash
is strobing at the moment or not. This is a read-only
control.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_TIMEOUT</constant></entry>
<entry>integer</entry>
</row>
<row>
<entry spanname="descr">Hardware timeout for flash. The
flash strobe is stopped after this period of time has
passed from the start of the strobe.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_INTENSITY</constant></entry>
<entry>integer</entry>
</row>
<row>
<entry spanname="descr">Intensity of the flash strobe when
the flash LED is in flash mode
(V4L2_FLASH_LED_MODE_FLASH). The unit should be milliamps
(mA) if possible.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_TORCH_INTENSITY</constant></entry>
<entry>integer</entry>
</row>
<row>
<entry spanname="descr">Intensity of the flash LED in
torch mode (V4L2_FLASH_LED_MODE_TORCH). The unit should be
milliamps (mA) if possible. Setting this control may not
be possible in presence of some faults. See
V4L2_CID_FLASH_FAULT.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_INDICATOR_INTENSITY</constant></entry>
<entry>integer</entry>
</row>
<row>
<entry spanname="descr">Intensity of the indicator LED.
The indicator LED may be fully independent of the flash
LED. The unit should be microamps (uA) if possible.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_FAULT</constant></entry>
<entry>bitmask</entry>
</row>
<row>
<entry spanname="descr">Faults related to the flash. The
faults tell about specific problems in the flash chip
itself or the LEDs attached to it. Faults may prevent
further use of some of the flash controls. In particular,
V4L2_CID_FLASH_LED_MODE is set to V4L2_FLASH_LED_MODE_NONE
if the fault affects the flash LED. Exactly which faults
have such an effect is chip dependent. Reading the faults
resets the control and returns the chip to a usable state
if possible.</entry>
</row>
<row>
<entrytbl spanname="descr" cols="2">
<tbody valign="top">
<row>
<entry><constant>V4L2_FLASH_FAULT_OVER_VOLTAGE</constant></entry>
<entry>Flash controller voltage to the flash LED
has exceeded the limit specific to the flash
controller.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_FAULT_TIMEOUT</constant></entry>
<entry>The flash strobe was still on when
the timeout set by the user ---
V4L2_CID_FLASH_TIMEOUT control --- has expired.
Not all flash controllers may set this in all
such conditions.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_FAULT_OVER_TEMPERATURE</constant></entry>
<entry>The flash controller has overheated.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_FAULT_SHORT_CIRCUIT</constant></entry>
<entry>The short circuit protection of the flash
controller has been triggered.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_FAULT_OVER_CURRENT</constant></entry>
<entry>Current in the LED power supply has exceeded the limit
specific to the flash controller.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_FAULT_INDICATOR</constant></entry>
<entry>The flash controller has detected a short or open
circuit condition on the indicator LED.</entry>
</row>
</tbody>
</entrytbl>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_CHARGE</constant></entry>
<entry>boolean</entry>
</row>
<row><entry spanname="descr">Enable or disable charging of the xenon
flash capacitor.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_READY</constant></entry>
<entry>boolean</entry>
</row>
<row>
<entry spanname="descr">Is the flash ready to strobe?
Xenon flashes require their capacitors charged before
strobing. LED flashes often require a cooldown period
after strobe during which another strobe will not be
possible. This is a read-only control.</entry>
</row>
<row><entry></entry></row>
</tbody>
</tgroup>
</table>
</section>
</section>
<table pgwide="1" frame="none" id="flash-control-id">
<title>Flash Control IDs</title>
<tgroup cols="4">
<colspec colname="c1" colwidth="1*" />
<colspec colname="c2" colwidth="6*" />
<colspec colname="c3" colwidth="2*" />
<colspec colname="c4" colwidth="6*" />
<spanspec namest="c1" nameend="c2" spanname="id" />
<spanspec namest="c2" nameend="c4" spanname="descr" />
<thead>
<row>
<entry spanname="id" align="left">ID</entry>
<entry align="left">Type</entry>
</row><row rowsep="1"><entry spanname="descr" align="left">Description</entry>
</row>
</thead>
<tbody valign="top">
<row><entry></entry></row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_CLASS</constant></entry>
<entry>class</entry>
</row>
<row>
<entry spanname="descr">The FLASH class descriptor.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_LED_MODE</constant></entry>
<entry>menu</entry>
</row>
<row id="v4l2-flash-led-mode">
<entry spanname="descr">Defines the mode of the flash LED,
the high-power white LED attached to the flash controller.
Setting this control may not be possible in presence of
some faults. See V4L2_CID_FLASH_FAULT.</entry>
</row>
<row>
<entrytbl spanname="descr" cols="2">
<tbody valign="top">
<row>
<entry><constant>V4L2_FLASH_LED_MODE_NONE</constant></entry>
<entry>Off.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_LED_MODE_FLASH</constant></entry>
<entry>Flash mode.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_LED_MODE_TORCH</constant></entry>
<entry>Torch mode. See V4L2_CID_FLASH_TORCH_INTENSITY.</entry>
</row>
</tbody>
</entrytbl>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_STROBE_SOURCE</constant></entry>
<entry>menu</entry>
</row>
<row id="v4l2-flash-strobe-source"><entry
spanname="descr">Defines the source of the flash LED
strobe.</entry>
</row>
<row>
<entrytbl spanname="descr" cols="2">
<tbody valign="top">
<row>
<entry><constant>V4L2_FLASH_STROBE_SOURCE_SOFTWARE</constant></entry>
<entry>The flash strobe is triggered by using
the V4L2_CID_FLASH_STROBE control.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_STROBE_SOURCE_EXTERNAL</constant></entry>
<entry>The flash strobe is triggered by an
external source. Typically this is a sensor,
which makes it possible to synchronises the
flash strobe start to exposure start.</entry>
</row>
</tbody>
</entrytbl>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_STROBE</constant></entry>
<entry>button</entry>
</row>
<row>
<entry spanname="descr">Strobe flash. Valid when
V4L2_CID_FLASH_LED_MODE is set to
V4L2_FLASH_LED_MODE_FLASH and V4L2_CID_FLASH_STROBE_SOURCE
is set to V4L2_FLASH_STROBE_SOURCE_SOFTWARE. Setting this
control may not be possible in presence of some faults.
See V4L2_CID_FLASH_FAULT.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_STROBE_STOP</constant></entry>
<entry>button</entry>
</row>
<row><entry spanname="descr">Stop flash strobe immediately.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_STROBE_STATUS</constant></entry>
<entry>boolean</entry>
</row>
<row>
<entry spanname="descr">Strobe status: whether the flash
is strobing at the moment or not. This is a read-only
control.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_TIMEOUT</constant></entry>
<entry>integer</entry>
</row>
<row>
<entry spanname="descr">Hardware timeout for flash. The
flash strobe is stopped after this period of time has
passed from the start of the strobe.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_INTENSITY</constant></entry>
<entry>integer</entry>
</row>
<row>
<entry spanname="descr">Intensity of the flash strobe when
the flash LED is in flash mode
(V4L2_FLASH_LED_MODE_FLASH). The unit should be milliamps
(mA) if possible.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_TORCH_INTENSITY</constant></entry>
<entry>integer</entry>
</row>
<row>
<entry spanname="descr">Intensity of the flash LED in
torch mode (V4L2_FLASH_LED_MODE_TORCH). The unit should be
milliamps (mA) if possible. Setting this control may not
be possible in presence of some faults. See
V4L2_CID_FLASH_FAULT.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_INDICATOR_INTENSITY</constant></entry>
<entry>integer</entry>
</row>
<row>
<entry spanname="descr">Intensity of the indicator LED.
The indicator LED may be fully independent of the flash
LED. The unit should be microamps (uA) if possible.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_FAULT</constant></entry>
<entry>bitmask</entry>
</row>
<row>
<entry spanname="descr">Faults related to the flash. The
faults tell about specific problems in the flash chip
itself or the LEDs attached to it. Faults may prevent
further use of some of the flash controls. In particular,
V4L2_CID_FLASH_LED_MODE is set to V4L2_FLASH_LED_MODE_NONE
if the fault affects the flash LED. Exactly which faults
have such an effect is chip dependent. Reading the faults
resets the control and returns the chip to a usable state
if possible.</entry>
</row>
<row>
<entrytbl spanname="descr" cols="2">
<tbody valign="top">
<row>
<entry><constant>V4L2_FLASH_FAULT_OVER_VOLTAGE</constant></entry>
<entry>Flash controller voltage to the flash LED
has exceeded the limit specific to the flash
controller.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_FAULT_TIMEOUT</constant></entry>
<entry>The flash strobe was still on when
the timeout set by the user ---
V4L2_CID_FLASH_TIMEOUT control --- has expired.
Not all flash controllers may set this in all
such conditions.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_FAULT_OVER_TEMPERATURE</constant></entry>
<entry>The flash controller has overheated.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_FAULT_SHORT_CIRCUIT</constant></entry>
<entry>The short circuit protection of the flash
controller has been triggered.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_FAULT_OVER_CURRENT</constant></entry>
<entry>Current in the LED power supply has exceeded the limit
specific to the flash controller.</entry>
</row>
<row>
<entry><constant>V4L2_FLASH_FAULT_INDICATOR</constant></entry>
<entry>The flash controller has detected a short or open
circuit condition on the indicator LED.</entry>
</row>
</tbody>
</entrytbl>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_CHARGE</constant></entry>
<entry>boolean</entry>
</row>
<row><entry spanname="descr">Enable or disable charging of the xenon
flash capacitor.</entry>
</row>
<row>
<entry spanname="id"><constant>V4L2_CID_FLASH_READY</constant></entry>
<entry>boolean</entry>
</row>
<row>
<entry spanname="descr">Is the flash ready to strobe?
Xenon flashes require their capacitors charged before
strobing. LED flashes often require a cooldown period
after strobe during which another strobe will not be
possible. This is a read-only control.</entry>
</row>
<row><entry></entry></row>
</tbody>
</tgroup>
</table>
</section>
<section id="jpeg-controls">
......
Documentation/DocBook/media/v4l/dev-subdev.xml
浏览文件 @ 071408b6
......@@ -374,29 +374,29 @@
rectangle --- if it is supported by the hardware.</para>
<orderedlist>
<listitem>Sink pad format. The user configures the sink pad
<listitem><para>Sink pad format. The user configures the sink pad
format. This format defines the parameters of the image the
entity receives through the pad for further processing.</listitem>
entity receives through the pad for further processing.</para></listitem>
<listitem>Sink pad actual crop selection. The sink pad crop
defines the crop performed to the sink pad format.</listitem>
<listitem><para>Sink pad actual crop selection. The sink pad crop
defines the crop performed to the sink pad format.</para></listitem>
<listitem>Sink pad actual compose selection. The size of the
<listitem><para>Sink pad actual compose selection. The size of the
sink pad compose rectangle defines the scaling ratio compared
to the size of the sink pad crop rectangle. The location of
the compose rectangle specifies the location of the actual
sink compose rectangle in the sink compose bounds
rectangle.</listitem>
rectangle.</para></listitem>
<listitem>Source pad actual crop selection. Crop on the source
<listitem><para>Source pad actual crop selection. Crop on the source
pad defines crop performed to the image in the sink compose
bounds rectangle.</listitem>
bounds rectangle.</para></listitem>
<listitem>Source pad format. The source pad format defines the
<listitem><para>Source pad format. The source pad format defines the
output pixel format of the subdev, as well as the other
parameters with the exception of the image width and height.
Width and height are defined by the size of the source pad
actual crop selection.</listitem>
actual crop selection.</para></listitem>
</orderedlist>
<para>Accessing any of the above rectangles not supported by the
......
Documentation/DocBook/media/v4l/pixfmt-srggb10dpcm8.xml
浏览文件 @ 071408b6
......@@ -22,8 +22,7 @@
with 10 bits per colour compressed to 8 bits each, using DPCM
compression. DPCM, differential pulse-code modulation, is lossy.
Each colour component consumes 8 bits of memory. In other respects
this format is similar to <xref
linkend="pixfmt-srggb10">.</xref></para>
this format is similar to <xref linkend="pixfmt-srggb10" />.</para>
</refsect1>
</refentry>
Documentation/DocBook/media/v4l/selection-api.xml
浏览文件 @ 071408b6
......@@ -40,6 +40,7 @@ cropping and composing rectangles have the same size.</para>
<section>
<title>Selection targets</title>
<para>
<figure id="sel-targets-capture">
<title>Cropping and composing targets</title>
<mediaobject>
......@@ -52,12 +53,12 @@ cropping and composing rectangles have the same size.</para>
</textobject>
</mediaobject>
</figure>
</para>
<para>See <xref linkend="v4l2-selection-targets" /> for more
information.</para>
</section>
See <xref linkend="v4l2-selection-targets" /> for more
information.
<section>
<title>Configuration</title>
......@@ -216,18 +217,17 @@ composing and cropping operations by setting the appropriate targets. The V4L2
API lacks any support for composing to and cropping from an image inside a
memory buffer. The application could configure a capture device to fill only a
part of an image by abusing V4L2 API. Cropping a smaller image from a larger
one is achieved by setting the field <structfield>
&v4l2-pix-format;::bytesperline </structfield>. Introducing an image offsets
could be done by modifying field <structfield> &v4l2-buffer;::m:userptr
</structfield> before calling <constant> VIDIOC_QBUF </constant>. Those
one is achieved by setting the field
&v4l2-pix-format;<structfield>::bytesperline</structfield>. Introducing an image offsets
could be done by modifying field &v4l2-buffer;<structfield>::m_userptr</structfield>
before calling <constant> VIDIOC_QBUF </constant>. Those
operations should be avoided because they are not portable (endianness), and do
not work for macroblock and Bayer formats and mmap buffers. The selection API
deals with configuration of buffer cropping/composing in a clear, intuitive and
portable way. Next, with the selection API the concepts of the padded target
and constraints flags are introduced. Finally, <structname> &v4l2-crop;
</structname> and <structname> &v4l2-cropcap; </structname> have no reserved
fields. Therefore there is no way to extend their functionality. The new
<structname> &v4l2-selection; </structname> provides a lot of place for future
and constraints flags are introduced. Finally, &v4l2-crop; and &v4l2-cropcap;
have no reserved fields. Therefore there is no way to extend their functionality.
The new &v4l2-selection; provides a lot of place for future
extensions. Driver developers are encouraged to implement only selection API.
The former cropping API would be simulated using the new one. </para>
......
Documentation/DocBook/media/v4l/vidioc-g-selection.xml
浏览文件 @ 071408b6
......@@ -152,12 +152,10 @@ satisfactory parameters have been negotiated. If constraints flags have to be
violated at then ERANGE is returned. The error indicates that <emphasis> there
exist no rectangle </emphasis> that satisfies the constraints.</para>
</refsect1>
<para>Selection targets and flags are documented in <xref
linkend="v4l2-selections-common"/>.</para>
<section>
<para>
<figure id="sel-const-adjust">
<title>Size adjustments with constraint flags.</title>
<mediaobject>
......@@ -170,9 +168,9 @@ exist no rectangle </emphasis> that satisfies the constraints.</para>
</textobject>
</mediaobject>
</figure>
</section>
</para>
<refsect1>
<para>
<table pgwide="1" frame="none" id="v4l2-selection">
<title>struct <structname>v4l2_selection</structname></title>
<tgroup cols="3">
......@@ -208,6 +206,7 @@ exist no rectangle </emphasis> that satisfies the constraints.</para>
</tbody>
</tgroup>
</table>
</para>
</refsect1>
<refsect1>
......
Documentation/DocBook/media/v4l/vidioc-qbuf.xml
浏览文件 @ 071408b6
......@@ -155,6 +155,8 @@ or no buffers have been allocated yet, or the
<structfield>userptr</structfield> or
<structfield>length</structfield> are invalid.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EIO</errorcode></term>
<listitem>
<para><constant>VIDIOC_DQBUF</constant> failed due to an
......
Documentation/DocBook/media/v4l/vidioc-subdev-g-selection.xml
浏览文件 @ 071408b6
......@@ -69,23 +69,22 @@
more information on how each selection target affects the image
processing pipeline inside the subdevice.</para>
<section>
<refsect2>
<title>Types of selection targets</title>
<para>There are two types of selection targets: actual and bounds. The
actual targets are the targets which configure the hardware. The BOUNDS
target will return a rectangle that contain all possible actual
rectangles.</para>
</section>
</refsect2>
<section>
<refsect2>
<title>Discovering supported features</title>
<para>To discover which targets are supported, the user can
perform <constant>VIDIOC_SUBDEV_G_SELECTION</constant> on them.
Any unsupported target will return
<constant>EINVAL</constant>.</para>
</section>
<para>Selection targets and flags are documented in <xref
linkend="v4l2-selections-common"/>.</para>
......@@ -132,6 +131,7 @@
</tbody>
</tgroup>
</table>
</refsect2>
</refsect1>
......
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